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        <a href=".." >Section 1</a>
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						<h1 id="understand-structure">UNDERSTAND STRUCTURE</h1>
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<h2 id="mindmap-of-this-section">Mindmap of this section</h2>
<p><img align="center" src="../pics/chap01sec01.png"></p>
<h2 id="1-definition"><n class="HL">1. Definition</n></h2>
<h3 id="the-structure-is-a--form-of-object-that-have-capability-of"><strong>The Structure</strong> is a  form of object that have capability of</h3>
<h4 id="suffering-stress-to-some-extent">suffering stress to some extent</h4>
<h4 id="resisting-stress-that-change-shape-of-this-form">resisting stress that change shape of this form</h4>
<h4 id="resisting-stress-that-change-size-of-this-one">resisting stress that change size of this one</h4>
<h2 id="2-structure-and-stress">2. Structure and Stress</h2>
<h3 id="the-ualitative-judge--the-direction--of-stress">The ualitative judge: <n class="HU"> the direction</n>  of stress</h3>
<h3 id="5-types-of-stress"><n class="HL">5 types of stress</n></h3>
<h4 id="pull-from-center-to-all-around">Pull (from center to all around)</h4>
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<h4 id="press-from-all-around-to-center">Press (from all around to center)</h4>
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<h4 id="twist-not-straight-direction">Twist (not straight direction)</h4>
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<h4 id="bend-cause-member-deformation">Bend (cause member deformation)</h4>
<p><img align="center" src="../pics/bend.png"></p>
<h4 id="shear-pairs-opposite-direction">Shear (pairs, opposite direction)</h4>
<p><img align="center" src="../pics/shear.png"></p>
<h3 id="actual-examples-of-stress">Actual examples of stress</h3>
<p><img align="center" src="../pics/actual%20examples.png"></p>
<h2 id="3--catgory">3. <n class="HL"> Catgory</n></h2>
<h3 id="mass-structure">Mass structure</h3>
<h3 id="framed-structure">Framed structure</h3>
<h3 id="shell-structure">Shell structure</h3>
<h2 id="4-features">4. <n class="HL">Features</n></h2>
<h3 id="41-mass-structure">4.1 Mass structure</h3>
<h4 id="press-strong">press strong</h4>
<h4 id="pull-weak">pull weak</h4>
<h3 id="42-framed-structure">4.2 Framed structure</h3>
<h4 id="press-and-pull-both-strong">press and pull both strong</h4>
<h3 id="shell-structure">Shell structure</h3>
<h3 id="43-transfering-stress-evenly-by-shape-of-shell">4.3 Transfering stress evenly by shape of shell</h3>
<h4 id="bearing-stress-evenly-by-shape-of-shell">bearing stress evenly by shape of shell</h4>

						
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